#### Script to do multiple treeMI imputations for the 1977 concrete industry
### and export the imputed dataset

#### input files:
####	concf77_gooddata.csv
####
#### output files:
####    concrete77_imputes.csv

require(tree)

#### read in the "good" dataset, in which we have replaced the Census Bureau imputes/edits with missing values
concrete_gooddata<-read.csv("concf77_gooddata.csv",header=TRUE)

### Create completed datasets using treeMI:

concrete_imputes<-treeMI(concrete_gooddata,ITER=5,c(0,0,0,0,0,0,0,1,0,0,0,0,0),starter=TRUE,PPDdraw = TRUE, minCut = 5,minDev  = 0.000001, startCut = 5, startDev = 0.000001) 

concrete_imputes$impSet$impsetnum <- 1
concrete_imputes$PPDsample$impsetnum <- 1
 ### For the first imputed dataset, create a new file
write.table(concrete_imputes$impSet,file="concrete77_imputes.csv",append=FALSE,sep=",") 
write.table(concrete_imputes$PPDsample,file="concrete77_predicted.csv",append=FALSE,sep=",") 

for (j in 2:500) {

  concrete_imputes<-treeMI(concrete_gooddata,ITER=5,c(0,0,0,0,0,0,0,1,0,0,0,0,0),starter=TRUE,PPDdraw = TRUE, minCut = 5,minDev  = 0.000001, startCut = 5, startDev = 0.000001) 

  concrete_imputes$impSet$impsetnum <- j
  concrete_imputes$PPDsample$impsetnum <- j

  ### Append the subsequent imputed datasets to the file created for the first dataset

  write.table(concrete_imputes$impSet,file="concrete77_imputes.csv",append=TRUE,sep=",",col.names=FALSE) 
  write.table(concrete_imputes$PPDsample,file="concrete77_predicted.csv",append=TRUE,sep=",",col.names=FALSE) 

}


